1Entomological Laboratory, Kyoto University, Kyoto, Japan
Tóm tắt
SummaryA simple method of sequential sampling is developed which would make it automatically possible to secure, without excess sampling, a predetermined level of precision for a series of population estimates being required. It appears to have wide application to sampling field populations under various situations since it is simply based upon the relationship of variance to mean for which a comprehensive formula deduced for biological populations from the linearity in the regression of mean crowding on mean density could be adopted. Some problems that may arise in practical application of the method are also discussed.
Từ khóa
Tài liệu tham khảo
10.1007/BF02514729
10.1007/BF02510873
Iwao S., 1969, Statistical ecology
10.2307/3012
Southwood T. R. E., 1966, Ecological methods with particular reference to the study of insect popolations.
Waters W. E., 1955, Sequential sampling in forest insect surveys, For. Sci., 1, 68
